Description
PERMABOND UV645 is a single part, fast curing, high viscosity UV curable adhesive designed specifically for bonding plastics. This material has excellent adhesion to a variety of plastics including polycarbonate as well as metals and glass.
Permabond UV645 has very high shear strength, elongation and impact resistance making it ideal for applications that require substrates with different coefficients of thermal expansion. Permabond UV645 has good depth of curing capabilities which make it suitable for use as a sealant.
Features & Benefits
- Cure on demand
- High shear strength
- Fast curing with low-power lamps
- 100% solids, no solvents
- Excellent adhesion to plastics
Physical Properties of Uncured Adhesive
| Chemical Composition | Methacrylate ester |
| Viscosity @ 25C |
20 rpm: 8,000-10,000 mPa.s (cP) |
| Specific Gravity | 1.1 |
Performance Characteristics
|
UV Curing Wavelength |
365 – 420 nm |
|
UV Curing Time (by strength of light) |
Low power 4mW/cm battery lamp: 10 secs |
|
Tensile Strength |
1600psi (11 N/mm^2) |
|
Shear Strength |
Polycarbonate >9 N/mm (>1300 psi)* Glass to Steel: 900psi to 1000psi 6 to 7 N/mm) |
|
Temperature Resistance |
212f (100C) 60% strength 302f (150C) 18% strength |
|
Appearance |
High Clarity, Colorless, Optically Clear, Transparent |
|
Elongation (ISO37) |
>70% |
|
Hardness (ISO868) |
50 to 65 Shore D |
*The cure time depends on the power of the UV lamp, its spectral output, the distance between the lamp and the components, and the transmission characteristics of the substrates.**LED UV lamps have a narrow range of spectral output. It is important to check suitability with Permabond in order to match the LED lamps peak wavelength with that of the adhesives photoinitiator to ensure optimal adhesive cure.
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